MAP most likely, maybe have to change out the alt connector. I'm installing a LS1 style aftermarket harness to a 5.3L right now and its all going good but I'm not too sure what a factory harness would consist of change-wise to work on the truck engine. The PCM should work but if you're getting a tune anyway, trade up for a 411 PCM. The Fbody PCM program has the benefit of being able control both fans independantly with multiple speeds.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
cool, i know i keep asking this question but, will that pcm or one that ran a 4l60e in a fbody run my old 4l60e???
Are those the last numbers on the pcm,411?
93 ECSB...lq4 6.0 swap, 255 walbro,cai, ported tb, shorty headers, 3" exhaust, tune,electric fans, NX wet kit 100 shot, 2/4 drop, beltech shocks, boss 335 22's, 295/30/22...looking for a cam.
yeah, its the last three numbers of the part number on the PCM. Your PCM is going to need tuned no matter what, at least to turn off the VATS, rear 02s and various smog option such as the fuel vapor solenoid, plus tuning for tire sizes, gears and anything else that is different than stock. I'm not sure but there shouldn't be any reason it can't run the old 60e. I don't think it will last long though.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
yeah i figured get rid of all the emission crap and vats, just wanted to make sure it was possible.
I did a search and found people using the lt1 4l60e on the ls1, so im assuming it works.
Oh and yeah i know it wont hold very long, but just wanna get it rolling for now. I only have a 90 day warranty on the engine and want to hear it run and make sure i have gook oil psi.
93 ECSB...lq4 6.0 swap, 255 walbro,cai, ported tb, shorty headers, 3" exhaust, tune,electric fans, NX wet kit 100 shot, 2/4 drop, beltech shocks, boss 335 22's, 295/30/22...looking for a cam.
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